My dream is solar shingles, like what they advertised late last year, and a Tesla house battery, but my electricity costs are $50/month, maybe $60 if I decided

My dream is solar shingles, like what they advertised late last year, and a Tesla house battery, but my electricity costs are $50/month, maybe $60 if I decided to get lazy and use my heater downstairs in the morning. And this is for a reasonably-sized home in the SF Bay Area. Even if I got AC (I currently don't have it), it still might not be enough to justify solar panels. I think I would have to convert all my gas appliances to electricity, and then it would push me into territory that would justify them.